Tooling assembly for cleaning a cylinder head using pressurized fluid and a method for the same

Abstract

A method of cleaning a cylinder head using pressurized fluid and a tooling assembly for the same includes a jet ignition insert attached to a spark plug well defined by the cylinder head. The insert defines an opening in fluid communication with the spark plug well. The insert includes an end wall attached to the insert distal end to close one end of the opening and the end wall defines holes. The tooling assembly includes a tool configured to clean the insert. A first engagement surface of the insert and a second engagement surface of the tool engage each other to form a seal that surrounds the holes of the insert such that the pressurized fluid is directed through the holes and into the opening of the insert during the first operation procedure of the tooling assembly to flush debris out of the holes of the insert.

What is claimed is: 
     
         1 . A tooling assembly for cleaning a cylinder head using pressurized fluid, the tooling assembly comprising:
 a jet ignition insert attached to a spark plug well defined by the cylinder head, wherein the jet ignition insert includes:
 an insert proximal end and an insert distal end, and defines an opening extending between the insert proximal end and the insert distal end, and the opening is in fluid communication with the spark plug well; and 
 an end wall attached to the insert distal end to close one end of the opening, and the end wall includes a face disposed outside of the spark plug well, wherein the end wall defines a plurality of holes in fluid communication with the opening, and the holes intersect the face such that outside of the jet ignition insert is in fluid communication with the opening inside of the jet ignition insert, and wherein the face includes a first engagement surface that surrounds the holes; 
   a tool configured to clean the jet ignition insert, wherein the tool includes a first tool attachment having a first tool housing that extends between a tool distal end and a tool proximal end relative to a first central axis, wherein the first tool housing defines a through-hole along the first central axis and the through-hole intersects the tool distal end and the tool proximal end to define respective open ends, wherein the tool distal end includes a second engagement surface that surrounds the through-hole; and   wherein the first engagement surface of the jet ignition insert and the second engagement surface of the tool engage each other during a first operation procedure of the tooling assembly to form a seal that surrounds the holes of the jet ignition insert such that the pressurized fluid is directed through the holes and into the opening of the jet ignition insert during the first operation procedure of the tooling assembly to flush debris out of the holes of the jet ignition insert.   
     
     
         2 . The tooling assembly as set forth in  claim 1  wherein the end wall of the jet ignition insert protrudes outwardly away from the spark plug well to define a protrusion, and the first engagement surface surrounds the protrusion, and wherein the holes are defined through the protrusion. 
     
     
         3 . The tooling assembly as set forth in  claim 2  wherein:
 the first tool attachment includes an inner surface defining a boundary of the through-hole, and the inner surface defines a first pocket presenting a space larger than the protrusion; 
 the second engagement surface of the first tool attachment surrounds the first pocket; and 
 the protrusion is contained inside of the first pocket and spaced apart from the inner surface of the first tool attachment when the first engagement surface of the jet ignition insert and the second engagement surface of the first tool attachment engage each other during the first operation procedure of the tooling assembly. 
 
     
     
         4 . The tooling assembly as set forth in  claim 2  wherein:
 the opening is disposed along a longitudinal axis; and 
 the holes include a first set of holes spaced from each other around the longitudinal axis, and includes a distal end hole disposed along the longitudinal axis such that the first set of holes surround the distal end hole. 
 
     
     
         5 . The tooling assembly as set forth in  claim 4  wherein:
 each of the first set of holes are disposed transversely through the protrusion relative to the longitudinal axis; 
 the distal end hole is disposed coaxial with the longitudinal axis; and 
 the pressurized fluid enters each of the first set of holes and the distal end hole during the first operation procedure to flush the debris out of the first set of holes and out of the distal end hole of the end wall. 
 
     
     
         6 . The tooling assembly as set forth in  claim 4  wherein:
 the protrusion defines a recess along the longitudinal axis and the first set of holes surround the recess; 
 the recess is a different configuration from the distal end hole; and 
 the distal end hole is disposed between the recess and the opening such that the distal end hole fluidly connects the recess and the opening. 
 
     
     
         7 . The tooling assembly as set forth in  claim 1  wherein:
 the jet ignition insert includes an inner wall defining a boundary of the opening, and the opening of the jet ignition insert includes a first portion having a first diameter and a second portion having a second diameter less than the first diameter of the first portion; 
 the second portion is disposed between the first portion and the holes such that the second portion fluidly connects the first portion of the opening and the holes; 
 the inner wall of the jet ignition insert includes a step between the first portion and the second portion of the opening; and 
 the pressurized fluid enters the holes during the first operation procedure to flush the debris out of the holes, through the second portion of the opening and toward the first portion of the opening. 
 
     
     
         8 . The tooling assembly as set forth in  claim 7  wherein:
 the opening is disposed along a longitudinal axis; 
 the inner wall of the jet ignition insert along the second portion of the opening includes a taper adjacent to an end of the second portion proximal to the end wall; 
 the holes intersect the taper of the inner wall; 
 the holes include a first set of holes spaced from each other around the longitudinal axis, and includes a distal end hole surrounded by the first set of holes; 
 the first set of holes each extend angularly outwardly away from the opening through the end wall to present a first angular orientation, respectively; 
 the distal end hole extends linearly relative to the longitudinal axis to present a second angular orientation; and 
 the pressurized fluid has a predetermined amount of fluid pressure to enter each of the first set of holes and the distal end hole in the first and second angular orientations during the first operation procedure to flush the debris out of the first set of holes and out of the distal end hole past the taper of the second portion of the opening and toward the first portion of the opening. 
 
     
     
         9 . The tooling assembly as set forth in  claim 1 :
 further including a body defining at least one inlet passage and at least one outlet passage;   wherein the body defines the spark plug well, and the spark plug well is disposed between the at least one inlet passage and the at least one outlet passage;   wherein the jet ignition insert is fixed to the body to cap the spark plug well;   wherein the first engagement surface of the jet ignition insert faces outwardly away from the spark plug well such that the first engagement surface is exposed outside of the body; and   wherein the second engagement surface of the first tool attachment is positioned to align with the first engagement surface of the jet ignition insert outside of the body to perform the first operation procedure.   
     
     
         10 . The tooling assembly as set forth in  claim 9  wherein:
 the tool includes a second tool attachment interchangeable with the first tool attachment, and the second tool attachment performs a second operation procedure of the tooling assembly; 
 the second tool attachment is configured differently from the first tool attachment; and 
 the second tool attachment has an outer diameter less than an outer diameter of the spark plug well and less than an outer diameter of the opening of the jet ignition insert such that the second tool attachment is insertable into the opening through the spark plug well to perform the second operation procedure. 
 
     
     
         11 . The tooling assembly as set forth in  claim 1  wherein:
 the tool includes a second tool attachment interchangeable with the first tool attachment, and the second tool attachment performs a second operation procedure of the tooling assembly; 
 the first tool attachment is formed of a first configuration and the second tool attachment is formed of a second configuration different from the first configuration; 
 the second tool attachment includes a second tool housing having an end cap; 
 the second tool housing defines a cavity along a second central axis, and the end cap of the second tool housing closes one end of the cavity; and 
 the end cap defines a plurality of apertures in fluid communication with the cavity, and the pressurized fluid is directed through the apertures and into the opening of the jet ignition insert during the second operation procedure of the tooling assembly. 
 
     
     
         12 . The tooling assembly as set forth in  claim 11  wherein:
 the end cap includes an end portion that the second central axis intersects and a side portion that surrounds the second central axis; and 
 the side portion defines the apertures spaced from each other around the second central axis. 
 
     
     
         13 . The tooling assembly as set forth in  claim 12  wherein:
 the apertures include a first set of apertures disposed through the side portion and each of the first set of apertures are spaced from each other around the second central axis; and 
 the apertures include a second set of apertures disposed through the end portion and spaced from each other around the second central axis. 
 
     
     
         14 . The tooling assembly as set forth in  claim 13  wherein:
 each of the first set of apertures are disposed transversely through the side portion relative to the second central axis; and 
 each of the second set of apertures are disposed substantially parallel to the second central axis. 
 
     
     
         15 . The tooling assembly as set forth in  claim 12  wherein each of the apertures are elongated radially around the second central axis to define elongated narrow slots around the side portion.